• The motto of Rikki Tikki Tavi's family was Run and Find Out! Does that describe you? Are you an Elephant's Child that hoovers up as much knowledge about how the world works as possible? This test may be for you.

    It's not a trivia or vocabulary test, however. I've tried hard to avoid testing how well you might or might not have memorized some kinds of specialized knowledge. The idea is, rather, to test whether you understand the principles behind some important everyday phenomena and/or technology.

    The answers to the test are given at the end.